SDR 97ZZZX4644

Service difficulty report · Spark Plug

Difficulty date: September 9, 1997
Submitted: March 26, 2000
Operation: General aviation
System (JASC): 7421 · Spark Plug/Igniter
Part: Spark Plug
Part number: REM40E
Condition: Defective
Location: Eng Ignition
Component: Champion
Stage of operation: IN
Nature of condition: W
Precautionary procedure: K

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

SUBMITTER REPORTS NEW CHAMPION SPARK PLUGS ARE BEING RECEIVED THAT ARE DEFECTIVE. DIFFERENT P/N'S FROM SEVERAL SHIPMENTS ARE FOUND TO BE WEAK, DISCOLORED OR WEAK WHEN TESTED. PLUGS WERE TESTED FROM ZERO TO 125 PSI WITH PROPER GAP. ESTIMATED DEFECTIVE QUANTITY AT 20-50 PERCENT. REM 38E DATE CODE 3D97. REM 40E DATE CODE 1H97 AND 3K96.